Seam-pressing machine



Nov. 13, 1928.

W. P. OSGOOD SEAM PRESSING MACHINE Filed Dec. 30, 1927 3 .s. d m n m w FB -Q WM 2 .5 M 6 WW Patented Nov. 13, 1928.

1,691,493 PATENT OFFICE.

WALTER r. oseoon, or Mann-EN, MASSACHUSETTS, assreuon To nosroi'rmacnmn wonxs eomranr, on, LYNN, MASSACHUSETTS, A conromrron or Messiaen!!- SET-ES.

SEAM-PBESSING MACHINE.

Application filed December 30, 1927. serial'li'o. 248,738.

mg with the work support to press the-seam and simultaneously to press adhesive tape.

against the flattened seam ridge.

The seam-pressing member: in said patent is so constructed that as the work and the tape pass to the pressing member thelatter will act first on the seam ridge to press or flatten the latter and simultaneously cause the adhesive tape to adhere thereto and will then act on the marginal portions of the tape either side of 2c the seam ridge and cause such marginal portions to adhere to the work outside of the flattened ridge. This method of operation is secured by providing. the active face of the pressing member with a groove at its heel or 5 rear end which groove is of a size to receive the flattened tape so that as the work progresses beneath the pressing member the forward or entering end of the pressing member will engage the seam ridge but will not engage the work eitherside of the seam ridge while at the rearward or deliver end the seamwill occupy the'groove and t e active face of the presser'member either side of the groove will engage the marginal ortion's of the tape and as press them agamst t .e work outside of the pressed seamridge.

An object of my resent invention is to provide an improved ibrm of work support and presser by which the same general operations may be carried out. In the present embodiment the work support is provided with a oove of a size to receive the seam ridge after it has been pressed, and the presser is provided with two portions, one of which is relatively narrow and is arranged to act on the seam ridge and ress or flatten the latter into the oove and at the same time to cause the adesive tape to adhere to the seam ridge, and

the other of which is relatively wide and is arranged to act on the portior: of the tape on both sides of the seam ridge and press the latter against the work. These two portions of the resser have such a relative position that as the work is fed over the work supportthe to relatively narrow portion of the presser acts on the work in advance of the relatively wideportion. Henceatany point alon the seem the seam rldge Wlll be pressed andt etape applied thereto before the portions of the tape on the sides of the seam are attached .to the work.

- -In order to give an understandin of the inventlon I have illustrated in the rawings a selected embodiment thereof which will now be described after which the novel features wlll be pointed out in the appended claims.

Fig. 11s a fragmentary view of a combined seam:press1ng and tape-applying means embodylng my invention;

Fig. 2 1s 'a fragmentary view showing two pleces seamed together;

Fig. 3 lllustrates the same pieces after they are opened out to present the seam rid e;

Fig. 1s an enlarged section on t e line 4l ,F1g. 1; I

Flg. 5 is an enlarged section on the line 5?, Fig. 1;

ig. 6 is a fra entar ers tive view of the active face t he pre ss zar;

F1 7 1s a sectional view throu h the work show ng the pressed seam with t e tape applied thereto;

Fig. 8 is a fragmentary sectional view of the work support.

Inasmuch as the present invention relates simply to the work support and the presser I have not thought it necessary to illustrate herem a complete machine, but have shown only the parts thereof with which the inventron is concerned.

flhe machine to which this invention is ap lied is desi ed to press a seam ridge 1 which 1s formed w en two ieces 2 and 3 of leather or other'sheet materia are seamed together in face to face relation by stitches 4, adjacent the edgesof the ieces and said pieces are afterwards opene out away from each other as shown in Fig. 3 and is also desi ed to appl an adhesive tape 5 to the presse seam simu taneously with the pressing of the latter.

The pressing of the seam and applying the tape is accomplished through the co-operation of a work su port and seam resser all as shown in my a ve-ment-ioned atent No. 1,646,212 and also in my prior Patent No. 1,549,376, dated August 11, 1925. The work support is shown at 6 and itis in the form of a roll which is freely mounted on a SlIBfiZ'OI stud 7 carried in a stand or support 8.

The presser is indicated at 9 and it has a porating in the roll two combined oscillating and rocking motion, all

as described in said patents which causes-it to intermittently engage the work and feed ripheral groove 10 of a size to receive the flattened seam rid In the construction illustrated the roove l is provided with a solid bottom an with y1eld1ng sides. This is provided for by forming the roll 6 with a metal ring 41 which forms the bottom of the groove and by incorrings 42 of yielding material, such as rubber, which form both sides of the groove, and the portion of the work supporting face either side of the groove. V As stated above the presser 9 is provided with two portions, one ofwh'ich is relatively narrow and the other of which is considerably Wider. The relatively narrow portion of the presser is that which acts on and presses the seam ridge and also causes the tape to adhere to the flattened or pressed seam ridge while the wider portion-of the presser is that which acts on the tape on both sides of the seam ridge and completes the application of the tape to the work. These two portions of the presser may integral with each other or may be separate elements movable relative to each other but in themeferred embodiment of the invention the narrow portion, whether integral with the wide portion or separate therefrom, acts on the seam ridge as the work is advanced across the work support and presses said ridge into the groove and also applies the tape to the ridge, the wider portion of the presser then acting on'the Work and pressing the tape thereagainst on both sides of the flattened scam. in the particular embodimentof the invention herein illustrated the two portions of the presser element are integral with each other 'both being formed as part of the presser element 9. The forward or relatively narrow portion isindicated at 11 and the wider portion which is at the rear of the presser is indicated at 12.

In the drawings 23 indicates asea'm guide such as shown inim Serial No. 239,293, which cooperates-with the seam ridge to guide the work to the work su port and 24 indicates a tape-delivery means y which the adhesive tape 5 is delivered to the seam ridge just before the latter passes under the pressmg element 9.

In the operation of the device as the work in the form shown in Fig. 3 is fed to the work su portthe tape will be laid over the seam ridge all as described in the above-mentioned patents. As the work with the tape thereon passes under the presser 9 the narrow forward portion 11 thereof acts on the seam ridge as shown in Fig. 4 and presses the co-pending application led December 12th, 1927 I latter, this pressing operation being dbne through the tape 5 which has been laid over the seam ridge. Since this portion 11 is relatively narrow the full pressure thereof will applied to the seam-ridge zone of the work and said ridge will be pressed or fiattened to the desired-extent. eration theseam with the seam ridge is forced into the groove 10 as seen in Fig. 4 and the adhesive tape 5 is pressed against and caused to adhere to the flattened seam ridge. When the work passes from under the narrow portion 11 of the presser to a position underthe wider rear portion 12 the marginal portions 13 of said-widerend 12 will engage the tape on either'sideof the pressed seam ridge and W111 press such portions of the tape against the work, thus completing the application or the tape to the work.

During the pressing of the seam ridge bythe narrow portion 11 of the presser said ridge will beforced against the metal ring unyielding and will be crowded] 41 which is into the groove 10, thelsides of which are somewhat yielding, and during this operation the work either side of the flattened seam ridge is supported by the yielding rings 42.

'When the work passes underneath the wider part v12 of the presser the portions 13 of the face thereof act on the portions 14 of the tape theyielding rings 42 to complete the pressing (I); th5e tape against the work as shown in 1g.

The groove 10 is of suflicient depth so that as the work passes beneath the ortion 12 of the presser there will be relative y little pressure, if any, on the flattened seam ridge and the pressing force of the presser will come on the marginal portions 14 of the tape and on the portions of the. work therebeneath which are supported by the yielding rings 42 of the work support 6. With this arrangement, therefore, the seam will be progressively pressed and the tape will also be progressively acted on both longitudinally and trans versely thereof.

The forcing of the work into the groove 10.

either side of the pressed seam and coact with" During this opis usually-t e outer face of the work when the latter is incorporated in a finished article, a convex shape as will be readily seen from Figs. 4 and 5,.while the face of the work on which the tape 5 is laid is given a concave curvature. When, therefore, the work comes out of the machine the tape will tend to hold the work in the general shape shown in Fig. 7. This is advantageous in some kinds of work, es ecially in treating the pieces of leather w ich are sewed together to form the heel portion of a shoe since when these pieces are incorporated in the shoe the outer face of the work which is opposite the seam ridge is on the outside of the heel and will naturally have a convex curvature.

While I have illustrated herein a selected embodiment of my invention I do not wish to belimifted to the constructional features shown.

I claim:

1. In a seam-pressing and tape-ap lying machine, the combination with a wor support over which is fed work in the form of two pieces seamed together by a seam presenting a seam ridge, said work support having a groove of a size to receive the seam ridge after it is pressed or flattened, of means for laying an adhesive tape over the seam ridge as the work is fed to the machine, and an intermittently acting presser co-operating with the work support to press the seam ridge and apply the tape thereto, said presser having the portion thereof with which the seam ridge first contacts relatively narrow so that it will engage the seam ridge and press the latter into the groove, the rear portion of said presser being wider than said groove and so disposed relative to the relatively narrow portion that as the work passes under said rear portion the latter will engage the portions of the tape outside the flattened seam and press said portions of the. tape against the portions of the work supported either side of the groove.

2. In a seam-pressing machine, the combination with a work sup ort over which is fed two pieces seamed toget er by a seam presenting a seam ridge, said work support having a groove of-a size to receive the pressed seam ridge, of means to lay an adhesive tape over the seam ridge, and means operating as the work is fed over the work support to apply pressure first to the seam ridge and the tape overlying it thereby to press the seam and force it into the groove of the work support, and thereafter to apply pressure to the marginal portions of the tape and the work which is supported either side of the groove in the work support.

In testimony whereof, I have signed my name to this specification.

WALTER P. o seoon. 

